Among Vermont’s rarest members of this genus, is known from six sites mostly in the Northeastern Highlands. Preferred habitat includes lakes, bog ponds, and rivers, but the Vermont sites are all lakes. Can be abundant at latitudes north of Vermont. May yet turn up at more Vermont sites with additional investigation (particularly in the Green Mountains), but is nonetheless considered imperiled or vulnerable in adjoining states (and stable in Quebec). A site in southern Vermont, a rather acidic lake, may represent the most southerly breeding population in eastern North America.
Conservation Status
State: S1S2, Species of Greatest Conservation Need
Global: G5
Flight Period
June 28 – July 28
